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Alberto Paniate


Last seen: 13 dagen ago Active since 2020

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Speed up a for loop in my programme?
Hi, one of the part of my programme contains this piece of code: size2=2500; gran=3; A=ones(size2,size2); for k=1...

3 maanden ago | 1 answer | 0

1

answer

Question


Out of memory on device. To view more detail about available memory on the GPU, use 'gpuDevice()'
Hi, I am using a new pc and I have found this problem for the first time. The error is the following: Error using gpuArray/su...

3 maanden ago | 0 answers | 0

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answers

Question


Incorrect centers with bwconncomp and regionprops
Hi, I have a matrix like the one linked. You can see it with figure,imagesc(Matrix(:,:)); I am using this programme to find t...

7 maanden ago | 2 answers | 0

2

answers

Question


Save a matrix and load it and visualize it with imagesc?
Hi, I have a matrix (called Ebin2) that represents a light field. First I would like to save it on my desktop and I have done...

11 maanden ago | 2 answers | 0

2

answers

Question


Find center of pixels in an image?
Hi, I have a picture like "Cattura" I want to find the center of those little areas that we can see. How can I do?

12 maanden ago | 2 answers | 0

2

answers

Question


Question about imresize?
Hi, I have this question: I have a matrix whose pixel value represent a gaussian beam. For my experimental purpose I want to...

12 maanden ago | 0 answers | 0

0

answers

Question


Auto correlation of a matrix error?
Hi, I have a matrix 1000x1000 (E) that represents a picture of a pattern of speckle. In order to find the largeness of these...

ongeveer een jaar ago | 0 answers | 0

0

answers

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Increase matrix size, with the first matrix a the center of the new matrix
Hi, suppose to have a matrix (2000x2000) now i want to copy it in a bigger matrix (4000x4000 for example), with the original ma...

ongeveer een jaar ago | 1 answer | 0

1

answer

Question


Constrain a parameter in a fit?
Hi, i have f=fit(media(:), dev(:), 'a*x+x^2') plot(f,media,dev) I want to constrain a between 2 and 4 how can I do? Th...

ongeveer een jaar ago | 1 answer | 0

1

answer

Question


After a certain time for loop speed slow down?
Hi, I am creating a program with a for loop. As I have asked in another question I have learned to speed this process with vecto...

ongeveer een jaar ago | 1 answer | 1

1

answer

Question


Speed up a programme with for loops?
Hi, I am working with a program like this: E0=10 A = zeros(10000,10000); for k = 1:10000 for j = 1:10000 ...

ongeveer een jaar ago | 1 answer | 0

1

answer

Question


Fourier transform of a picture?
Hi, I'm trying to create a model that simulates a lens with fourier optics. Studying fourier optics I have this formula: ...

ongeveer een jaar ago | 1 answer | 0

1

answer

Question


How to change size of figure from rectangle to square?
I have this picture and what I notice is that, despite it is 10000x10000, it is a rectangle, how can I change it?

meer dan een jaar ago | 1 answer | 0

1

answer

Question


How to eliminate points with highest intensity in a color plot?
Hi, I have a matrix that I visualize with a color plot. But there are points with very high intensity that don't allow me to vis...

meer dan een jaar ago | 1 answer | 0

1

answer